O2 Fitness is a chain of health clubs assisting personal fitness related services, including weight loss, strength gain and overall condition. Based in Wilmington, N.C., the store offers a list of programs, such as free weights, cardio getaway theatre, group cycling, the o2 express workout, certified personal trainers, outdoor turf training, yoga, pilates and child care, among others. In addition, it provides over 100 pieces of cardio equipment, personal entertainment screens, over 50 group exercise classes a week and multiple lines of strength machines. O2 Fitness has association with International Health, Racquet & Sportsclub Association (IHRSA).